No, it is completely legal and generally very safe to walk around at night in Japan. Japan is world-renowned for its low crime rates, and it is common to see people walking alone or using public transport late into the night. However, there are a few nuances to be aware of in 2026. Under the Juvenile Protection Ordinance, minors (under 18) are generally not permitted to be out in public places like parks or game centers after 11:00 PM without a guardian. Additionally, while walking is legal, police have the right to conduct a "shitsumon" (questioning) or a "voluntary" bag search if they find someone’s behavior suspicious. This is a common practice and is not an arrest; as long as you carry your residence card or passport (as required by law for foreigners), these encounters are usually brief and polite. Avoid trespassing on private property or entering closed parks, but otherwise, Japan’s night-time streets are among the safest in the world.